Help MAP transformation with HTTP Binding OH3

[Lukie (Luke)]

Thanks for the help so far. I was able to make the item display the correct state but I just can’t successfully send a command. I’ve reviewed the documentation and the entirety of this post but there must be something I am just not understanding:

HTTP binding - openHAB 3 version

As some of you might know the http binding is still an openHAB 1-addon and will not be supported in the upcoming openHAB3. Therefore I developed a new openHAB 3-version. This is still work-in-progress, but I would like to here your thoughts (especially on missing or unclear features), bugs and everything related. The documentation can be found on Github: (edited: binding included in distribution).http and the latest and greatest JAR is available at (edited; binding included in distribution). Y…

I’m not sure what I’m doing wrong but would very much appreciate help from anyone knowledgeable with the HTTP binding. If I need to add extra information to help others help me I am happy to do that - just let me know.

This is how the channel is configured currently:

UID: http:url:actron
label: HTTP Actron Webserver
thingTypeUID: http:url
configuration:
  authMode: BASIC
  ignoreSSLErrors: false
  headers:
    - Accept=application/json
  baseURL: http://actron.ninja.is
  password: xxx
  refresh: 10
  commandMethod: PUT
  contentType: application/json
  timeout: 3000
  username: xxx
channels:
  - id: power
    channelTypeUID: http:switch
    label: Power
    description: ""
    configuration:
      onValue: "true"
      commandTransformation: JSONPATH:$.data.last_data.DA.amOn
      offValue: "false"
      stateExtension: /rest/v0/device/xxxx?user_access_token=yyyy
      commandExtension: /rest/v0/device/xxxx?user_access_token=yyyy
      stateTransformation: JSONPATH:$.data.last_data.DA.amOn

And this is the error in the log when I flick the switch:

23:17:03.919 [WARN ] [l.transform.SingleValueTransformation] - Executing transformation ChannelStateTransformation{pattern='$.data.last_data.DA.amOn', serviceName='JSONPATH'} failed: Invalid path '$.data.last_data.DA.amOn' in 'false'

The thing is if I change the onValue or offValue the Item goes into UNDEF.

With regards to the way the item is set up it’s just a switch with no profile currently, but I’ve tried lots of various combinations so there’s not much point in posting it - i’m just down to trying random stuff now hoping to see some different behaviour.